I don't follow brightest=most safety. I think there is a point when all those super bright lights turn you into a distraction rather than another vehicle on the road. People tend to steer toward what they are looking at. If it's you with all that 'blink' then that's not a good thing.

After years of different setup I think the best balance is a ViewPoint on a blinking setting with a solid LED on second locale. I use a Knog on my messanger bike for this.